<el-upload
    ref="upload"
    <volist name="option" id="op">
        {$key}="{$op}"{:(' ')}
    </volist>
>
    <if condition="$upload_icon">
        <i class="{$upload_icon}"></i>
    <else/>
        <i class="el-icon-plus"></i>
    </if>
</el-upload>
<if condition="$tips">
    <div slot="tip" class="el-upload__tip">{$tips}</div>
</if>
